vsphere cannot contact the specified host

I have a vmware 4.1 managed by vsphere 4.1 several of my host's show disconnected when trying to reconnect I get a specified host not responding. I removed one from inventory but no luck adding that host back. Each of the host's can be managed by the vsphere client software just fine so I am assuming that it is a vcenter issue any help would be appreciated.
Thanks
Chris

The host that I slicked does not show correct storage but the other two which I am trying to reconnect have identical storage/networking showing in the local host each is currently running vm's which are operating correctly.

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